Hmmm.. lets see, you used the “Bucksaw” to do the cuts . Using the “Floating magnet” balanced on the “Wine stand” in combination with the “Cherry boot jack” to get the first tails in, you got the next row of tails tucked in using the “Kanna restoration” levered with the “Mini strat”... phew. Once that was done you used the “CD lamp” levered against the “False spiral lamp” to shrink the last row of tails while you levered them in with the “Veneer bookmarks” alright! The “Plant stand” was handy for the finishing process. Those “Burr puzzles” are now completely annoyed with you because they are totally out classed.

I even did a quick drawing on sketchup to see what I think each piece should look like, but if you make it as I drew it, without gaps between the pins and tails, it just cannot go together. It that the secret?

dspahn is right – it hurts my brain too.

-- I may have lost my marbles, but I still have my love of woodworking

Some fun guesses (I’m looking at you exelectrician), and a hearty congratulations to RG for coming up with the solution so quickly! I put up another photo from above, but I’ll save the full reveal for those who would like to puzzle it out. Plane makers create this joint, but they cheat by using a peen hammer. I came across some astounding examples of joinery by Kintaro Yazawa, including the nejiri arigata aka twisted dovetail, a close cousin of this double dovetail. An astounding repository of wooden puzzles can be seen here.

Very puzzling. I understand the twisted dovetail, I understand the rising dovetail, but this boggles my mind. I’lll be making one of these once you or I figure out how it is done. Nice job and thanks for posting.